Improvement in spring bed-bottoms



6 L. AMES&. A. H. FROST.

. Spring Bed-Bottoms.

No. 143,397. PatentedOct. 7,1873.

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UNITED STATES PATENT O FICE.

CHARLESL. AMES AND ABEL H. FROST, OF CHICAGO, ILLINOIS.

IMPROVEMENT IN SPRING BED-BOTTOMS- Specification forming part of LettersPatent No. 143,397, dated October 7, 1873; application filed August 12,1873.

To all whom it may concern:

Be it known that we, CHARLES L. Aims and ABEL H. FRosT, of Chicago, inthe county of Cook and State of Illinois, have invented an Improvementin Spring Bed-Bottoms, of which the following is aspecification:

The nature of the present invention consists in pivoted coil-springbraces, which are pivoted to the upper and lower sections of thebed-bottom, so as to prevent them from spreading apart too far, and fromhaving a lateral movement, and so as to swing on the pivoted parts andfold against the transverse framepieces for the convenience oftransportation, as hereinafterfully shown and described.

In'the drawings, Figure 1 is a broken plan view of a two-part springbed-bottom provided with our improved pivoted coil-spring braces; Fig.2, a transverse section through Fig. 1 on line as, with the springsswung against the transverse frame-piece as when the bottom is arrangedfor shipment; Fig. 3, a longitudinal view of one end of the bottom.

A represents one of the lower transverse frame-pieces of the ordinarybed-bottom, there being used as many such frame-pieces as there are tobe rows of springs across the bed. The pieces A rest on two longitudinalbed-pieces, A, whose lengths correspond to the length of the bed-bottom.The coil-springs E rest in the usual manner on the cross-pieces A, andtheir upper ends are fastened to upper crosspieoes C, to which theordinary spring-slats B are also attached.

The bed-bottom so far described is in commen use, so nothing new isclaimed in regard thereto.

D represents diagonal braces, which aremade of metal wire or othersuitable material, and provided with downwardly-projecting ends G,

which pass through holes in the cross-pieces A and C, and bent over orcoiled round at M, so as to hold the said cross-pieces fi'om beingthrown too far apart by the springs E. The middle parts of the braces Dare provided with coil-springs F, so as to constantly draw on the upperand lower sections of the bottom and prevent a lateral or longitudinalmovement of the upper section, and so as to compensate for theshortening of the distance from G to nthe extremities of the braceswhenthe upper section is depressed. Were it not for such coil-springs, thebraces D would be more or less bent when the upper' section was bornedown. The ends n of the braces are attached to the bed-pieces A by meansof hooks and staples, so as to be readily detached when the braces areto be folded, as at Fig. 2, for shipment.

We claim The bracesD, provided with the pivoted ends G and coil-springsF, in combination with the upper and lower sections A A C B of atwo-part bed-bottom, as and for the purpose set forth.

CHARLES L. AMES. ABEL H. FROST.

Witnesses:

J. H. ELLIOTT, G. L. OHAPIN.

